T. gondii IgG Antibody, Serum (Qualitative Immunoassay)
This test checks for antibodies to the parasite *Toxoplasma gondii*, which can indicate past or current infection. Antibodies are your body’s immune response to the parasite.
["Knowing if you’ve been exposed to *Toxoplasma* helps guide care, especially for pregnant women or those with weakened immune systems."]
Key facts at a glance
- LOINC
- 100147-8
- Short code
- T gondii Ab bands Pnl Ser IB
- Synonyms
- T gondii Ab bands Pnl Ser IB
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- ib
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your healthcare provider may recommend this test if you have symptoms like fever, fatigue, muscle aches, or swollen lymph nodes, or if you’ve been exposed to raw meat, cat litter, or contaminated food. It’s also used during pregnancy to check for *Toxoplasma* infection, which can affect your baby.
What to Expect Before the Test
No special preparation is needed. A blood sample will be taken from a vein in your arm by a healthcare professional. The test looks for antibodies in your serum, which your body produces after exposure to the parasite.
What the Results Mean
A positive result means your body has detected antibodies to *Toxoplasma*, suggesting past infection. A negative result means no detectable antibodies were found at this time. Results don’t always show current infection; they reflect past exposure.
Who Should Be Cautious
Pregnant women, people with weakened immune systems (like those with HIV or undergoing chemotherapy), and those with certain health conditions (e.g., liver disease) should discuss results with their doctor to avoid risks like severe illness or complications.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test helps diagnose *Toxoplasma gondii* infection, which can cause serious illness in immunocompromised individuals or severe congenital issues in newborns if a mother is infected during pregnancy. It’s also used to monitor treatment effectiveness or rule out infection in high-risk groups.
Short name
T. gondii Antibody Test
Frequently asked questions
What does a positive result mean for me?
Can I get this test if I’m pregnant?
How long does it take to get results?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy